<?php

namespace Websmid\CustomHtml\Module;

use Websmid\CustomHtml\Config\Config;
use Websmid\CustomHtml\Model\CustomHtmlBlock;
use Websmid\CustomHtml\Model\CustomHtmlFaq;
use Websmid\CustomHtml\Model\CustomHtmlGroup;
use Websmid\CustomHtml\Model\CustomHtmlSlide;
use Context;

trait DisplayHooks
{
    public function hookActionFrontControllerSetMedia(): void
    {
        $this->context->controller->registerStylesheet(
            'ws_customhtml_front',
            '/modules/' . $this->name . '/views/css/front/customhtml.css'
        );

        $this->context->controller->registerJavascript(
            'ws_customhtml_front',
            '/modules/' . $this->name . '/views/js/front/customhtml.js'
        );
    }

    public function renderWidget($hookName = null, array $configuration = [])
    {
        if (empty($hookName)) {
            return false;
        }

        $idLang = (int) Context::getContext()->language->id;
        $templateFile = 'module:ws_customhtml/views/templates/hook/customhtml_block.tpl';
        $cacheId = $this->getCacheId('ws_customhtml_' . $idLang . '_' . $hookName);

        if (!$this->isCached($templateFile, $cacheId)) {
            $variables = $this->getWidgetVariables($hookName, $configuration);

            if (empty($variables)) {
                return false;
            }

            $this->smarty->assign($variables);
        }

        return $this->fetch($templateFile, $cacheId);
    }

    public function getWidgetVariables($hookName = null, array $configuration = [])
    {
        $idLang = (int) Context::getContext()->language->id;
        $groupList = $this->loadActiveGroupsWithBlocks((string) $hookName, $idLang);

        if (empty($groupList)) {
            return [];
        }

        return [
            'hookName'  => $hookName,
            'groupList' => $groupList,
        ];
    }

    private function loadActiveGroupsWithBlocks(string $hookName, int $idLang): array
    {
        $groups = CustomHtmlGroup::getActiveByHookName($hookName);

        if (empty($groups)) {
            return [];
        }

        $blocksByGroup = CustomHtmlBlock::getActiveByGroupIds(array_column($groups, 'id_ws_customhtml_group'), $idLang);
        $blocksByGroup = $this->attachFaqsToBlocks($blocksByGroup, $idLang);
        $blocksByGroup = $this->attachImageUrls($blocksByGroup);
        $blocksByGroup = $this->attachSlidesToBlocks($blocksByGroup, $idLang);

        $groups = array_map(static function (array $group) use ($blocksByGroup) {
            $group['blocks'] = $blocksByGroup[(int) $group['id_ws_customhtml_group']] ?? [];

            return $group;
        }, $groups);

        return array_values(array_filter($groups, static function (array $group) {
            return !empty($group['blocks']);
        }));
    }

    private function attachFaqsToBlocks(array $blocksByGroup, int $idLang): array
    {
        return array_map(static function (array $blocks) use ($idLang) {
            return array_map(static function (array $block) use ($idLang) {
                if ($block['type'] === 'faq') {
                    $block['faqs'] = CustomHtmlFaq::getByBlockIdForLang((int) $block['id_ws_customhtml'], $idLang);
                }

                return $block;
            }, $blocks);
        }, $blocksByGroup);
    }

    private function attachImageUrls(array $blocksByGroup): array
    {
        return array_map(static function (array $blocks) {
            return array_map(static function (array $block) {
                if (in_array($block['type'], ['banner', 'usp'], true)) {
                    $block['image_url'] = CustomHtmlBlock::getBannerImageUrl($block['image']);
                }

                return $block;
            }, $blocks);
        }, $blocksByGroup);
    }

    private function attachSlidesToBlocks(array $blocksByGroup, int $idLang): array
    {
        return array_map(function (array $blocks) use ($idLang) {
            return array_map(function (array $block) use ($idLang) {
                if ($block['type'] === 'slider') {
                    $block['slides'] = $this->loadSlidesForBlock((int) $block['id_ws_customhtml'], $idLang);
                    $block['slider_config'] = $this->buildSliderConfig($block);
                    $block['slider_desktop_column_width'] = $this->buildSliderDesktopColumnWidth($block);
                }

                return $block;
            }, $blocks);
        }, $blocksByGroup);
    }

    private function loadSlidesForBlock(int $idBlock, int $idLang): array
    {
        return array_map(static function (array $slide) {
            $slide['image_url'] = CustomHtmlBlock::getBannerImageUrl($slide['image']);
            $slide['show_title'] = true;

            return $slide;
        }, CustomHtmlSlide::getByBlockIdForLang($idBlock, $idLang));
    }

    private function buildSliderConfig(array $block): string
    {
        $config = [
            'slidesPerView' => (float) $block['slides_per_view_mobile'],
            'spaceBetween'  => 16,
            'speed'         => 500,
            'watchOverflow' => true,
        ];

        if ($block['slider_mode'] === 'responsive') {
            $config['breakpoints'] = [
                Config::SLIDER_RESPONSIVE_BREAKPOINT => ['slidesPerView' => (float) $block['slides_per_view_tablet']],
            ];
        } else {
            $config['breakpoints'] = [
                768 => ['slidesPerView' => (float) $block['slides_per_view_tablet']],
            ];

            if ((float) $block['slides_per_view_desktop'] > 0) {
                $config['breakpoints'][992] = ['slidesPerView' => (float) $block['slides_per_view_desktop']];
            }
        }

        if ((int) $block['autoplay_delay'] > 0) {
            $config['loop'] = true;
            $config['autoplay'] = [
                'delay'                => (int) $block['autoplay_delay'] * 1000,
                'disableOnInteraction' => false,
            ];
        }

        return json_encode($config);
    }

    private function buildSliderDesktopColumnWidth(array $block): ?string
    {
        if ((float) $block['slides_per_view_desktop'] <= 0) {
            return null;
        }

        $columns = max(1, (int) round((float) $block['slides_per_view_desktop']));

        return round(100 / $columns, 4) . '%';
    }
}